<template>
  <s-layout title="分类" tabbar="/pages/index/category" :bgStyle="{ color: '#fff' }">
    <view class="s-category">
      <view class="three-level-wrap ss-flex ss-col-top">
        <view class="side-menu-wrap" :style="[{ top: Number(statusBarHeight + 88) + 'rpx' }]">
          <scroll-view scroll-y :style="[{ height: pageHeight + 'px' }]">
            <view
              class="menu-item ss-flex"
              v-for="(item, index) in state.categoryList"
              :key="item.id"
              :class="[{ 'menu-item-active': index == state.activeMenu }]"
              @tap="onMenu(index)"
            >
              <view class="menu-title ss-line-1">
                {{ item.name }}
              </view>
            </view>
          </scroll-view>
        </view>
        <view class="goods-list-box" v-if="productList.id">					
					<view class='listw' >
						<view class='title flex center middle'>
							<view class='line'></view>
							<view class='name'>{{productList.name}}</view>
							<view class='line'></view>
						</view>
						<view class='list flex middle wrap'>
							<block v-for="(itemn,indexn) in productList.child" :key="indexn">
								<view class="cate-item" @click="tolist(itemn)" >
                  <img :src="itemn.extra" class="cate-pic" alt="">
                  <text class="l">{{itemn.name}}</text>
                </view>
							</block>
						</view>
					</view>
        </view>
      </view>
    </view>
  </s-layout>
</template>

<script setup>
  import mall from '@/mall';
  import { getCategoryList } from '@/mall/api/home';
  import { onLoad, onReachBottom } from '@dcloudio/uni-app';
  import { computed, reactive } from 'vue';
  import _ from 'lodash';
  const state = reactive({
    categoryList: [],
    activeMenu: '0',
    loadStatus: '',
  });

  const { screenHeight, safeAreaInsets, screenWidth, safeArea } = mall.$platform.device;
  const pageHeight = computed(() => safeArea.height - 44 - 50);
  const statusBarHeight = mall.$platform.device.statusBarHeight * 2;
  const productList = computed(()=>state.categoryList[state.activeMenu])

 onLoad(async (options) => {
    await getList(options);
  });
    async function getList(options) {
    const {  data } = await getCategoryList();
     state.categoryList = data;
  }
  const onMenu = (val) => {
    state.activeMenu = val;
  };

 function tolist(item) {
  uni.navigateTo({
      url: `/pages/goods/list?categoryId=${item.id}`,
    });
 }
</script>

<style lang="scss" scoped>
  .s-category {
    :deep() {
      .side-menu-wrap {
        width: 200rpx;
        height: 100%;
        padding-left: 12rpx;
        background-color: #f6f6f6;
        position: fixed;
        left: 0;

        .menu-item {
          width: 100%;
          height: 88rpx;
          position: relative;
          transition: all linear 0.2s;

          .menu-title {
            line-height: 32rpx;
            font-size: 30rpx;
            font-weight: 400;
            color: #333;
            margin-left: 28rpx;
            position: relative;
            z-index: 0;

            &::before {
              content: '';
              width: 64rpx;
              height: 12rpx;
              background: linear-gradient(
                90deg,
                var(--ui-BG-Main-gradient),
                var(--ui-BG-Main-light)
              ) !important;
              position: absolute;
              left: -64rpx;
              bottom: 0;
              z-index: -1;
              transition: all linear 0.2s;
            }
          }

          &.menu-item-active {
            background-color: #fff;
            border-radius: 20rpx 0 0 20rpx;

            &::before {
              content: '';
              position: absolute;
              right: 0;
              bottom: -20rpx;
              width: 20rpx;
              height: 20rpx;
              background: radial-gradient(circle at 0 100%, transparent 20rpx, #fff 0);
            }

            &::after {
              content: '';
              position: absolute;
              top: -20rpx;
              right: 0;
              width: 20rpx;
              height: 20rpx;
              background: radial-gradient(circle at 0% 0%, transparent 20rpx, #fff 0);
            }

            .menu-title {
              font-weight: 600;

              &::before {
                left: 0;
              }
            }
          }
        }
      }

      .goods-list-box {
        background-color: #fff;
        width: calc(100vw - 200rpx);
        padding: 10px;
        margin-left: 200rpx;
      }

      .banner-img {
        width: calc(100vw - 130px);
        border-radius: 5px;
        margin-bottom: 20rpx;
      }
    }
  }
.cate-item{
  width: 30%;
  margin: 16rpx 0.5%;
  text-align: center;
  color: #333;
}
.cate-pic{
  display: block;
width: 120rpx;
		height: 120rpx;
		border-radius: 50%;
    margin:0 auto 16rpx;
}
</style>
